Burglarproof screen



Feb. 6, H- Q BANK BURGLARPROOF SCREEN Filed June 20, 1932 m nl@ lslv W kW/M Q f/ ,0. y a 9 a W 3 T3 e Y, M5 7 IVNV ,w w m W/ n A, 4 9 o o 4W Q Q E u F, w-

Patented Feb. 6, 1934 NETE STATES ATENT FFICE Application June 20, 1932.

4 Claims.

This invention relates to a burglar proof screen and has for an object to provide a screen which may be placed in a window frame to cooperate with the window sash and exclude the possibility 5 of an intruder entering through the screened Window.

Yet an additional object of this invention is to provide a screen which may be locked from inside the window either by means of a handle or l a key, and which will be easily removable and replaceable when desired.

Still a further object of this invention is to provide an improved screen which may be placed in a Window to allow ventilation therethrough, and which will effectively exclude intruders even though the wire, screen or netting be cut away by such prospective intruder.

Yet a further object of this invention is to provide a burglar proof screen which may be made 2o of any desired size to f'lt the window with which it is to be used, and which will be neat and ornamental in appearance.

With the foregoing and other objects in view, as will hereinafter become apparent, this invention comprises the constructions, combinations and arrangements of parts, hereinafter set forth, disclosed and shown on the accompanying drawing. In this drawing,

Figure l is a front elevation of a window with the burglarproof screen locked in position,

Figure 2 is a sectional View taken on line 2-2 of Figure 1 showing the screen locked in position under the outer window sash,

Figure 3 is a sectional view taken on line 3--3 35 of Figure 1 showing the screen in position and showing diagrammatically the method of operating or removing the same from the window,

Figure 4 is a front elevation of the metal frame only, and

Figure 5 is a diagrammatic View of the lock movement for manipulating slide rods.

There is shown at the window frame consisting of the window sill 11, the window jamb 12, the frame top 13, the upper window sash 14 and the lower window sash l5, all of the usual or conventional construction.

The screen i6 constituting this invention consists of two half screens 17 and 18 pivotally hinged together by the locking bar 19. Each half screen 17 and 18 is made up of sturdy metallic framework provided with cross bars 20 and 2l sufficiently close together so as to make it impossible for any person to pass therebetween. A wire, screen or netting 22 is secured in any suitable manner to the screen frame 17 and 18. The

Serial No. 618,338

(Cl. 2li-71) pivoting bar 19 is made of two separate sections 23 and 24 each pivotally secured as at 25 and 26 to a locking disc 27.

When the lock 2S is operated it rotates the locking disc 27 to about 90 drawing the pivots 25 and 26 to the position shown at 25 and 26', and retracting the end of the pivot bar sections 23 and 24. The cross bar 30 is secured to the window sill l1, and another cross bar 31 is secured to the bottom of the window sash 14. Centrally located in each of the cross bars 30 and 3l are metallic ferrules 32 and 33 which cooperate with and receive the ends of the pivot bar sections 23 and 24 when in extended or locked position. Obviously, the ferrules 32 and 33 may be countersunk in the window sill on the bottom of the window sash 14 instead of being placed in special cross bar members.

1n operation, the disc 27 is turned to unlocked position, retracting the pvot bar sections 23 and 24 and permitting the screen 16 to be folded angularly as shown at 15 for placing the same between the window jamb 12. The lock 28 is then operated to turn the disc 27 in a locked position projecting the end of the pivot bar sections 23 and 24 into metallic ferrules 32 and 33, thus securely locking the screen in position at the same time that it locks the window sash against the top of the window frame.

Although the lock 28 has been shown for operating the disc 27, it is obvious that a handle may be substituted for the lock, inasmuch as the handle would be inaccessible so long as the screen netting 22 is not mutilated. Furthermore, the bars 20 `and 21 may be made in the form of any suitable decorative scroll work as desired to give an ornamental appearance.

The novel features and the operation of this device will be apparent from the foregoing description. While the device has been shown and the structure described in detail, it is obvious that this is not to be considered limited to the exact form disclosed and that changes may be made therein within the scope of what is claimed, Without departing from the spirit of the invention.

` Having thus set forth and disclosed the nature of this invention, what is claimed is:

1. An intrusion preventing device for windows and the like, comprising a pair of frame members pivoted together, expandible pivot means for said frame members, and ferrule means secured in the Window and cooperable With said expandible pivot means to receive the same and hold the same in position.

2. An intrusion preventing device for Windows and the like, comprising a pair of frame members pivoted together, exp'andible pivot means for said frame members, ferrule means secured in'the Window and cooperable with said expandible pivot means to receive the sameand hold the same in position, and a screen netting on said framework.

3'. A device for permitting ventilation through a Window and preventing intrusion therethrough, said device comprising a pair of screened frames, a locking rod hinging said frames together, a' rotatable locking disc for retracting and eiioanding said locking rod, andV ferrule means in the Window cooperating with the locking rod to lock the device in position in a Window.

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cured tothe bottom of the upper window sash;

said cross bars having said ferrule meanscsecured therein.

HENRY OSCAR BANK. 

